Change web-roll mechanism for printing-presses.



s. G. eoss.

CHANGE WEB ROLL MECHANISM FOR PRINTING PRESSES.

APPLICATION FILED NOV-13. I916.

Patented A r. 22,1919.

4 SHEETS-SHEET I.

Cl iANGE WEB ROLL MECHANISM FOR PRINTING PRESSES.

APPLICATION FILED NOV-13.1916.

Patented Apr. 22, 1919.

4 SHEETS-SHEET 2- k 4 k Wm may m CHANGE WE'B ROLL MECHANISM FOR PRINIINEEEEEEE s.

EEEEEEEEEEEEE 3- S. G. GOSS.

CHANGE WEB ROLL MECHANISM FOR PRINTING P RESSES.

APPLICATION FILED NOV. 13 I9I6.

Patnted Apr. 22, 1919.

I II

4 SHEETSSHEET 4- siren isms SAMUEL G. GOSS, OF GLENCOE, ILLINOIS,ASSIGNOR TO THE GOSS PRINTING PRESS COMPANY, OF CHICAGO, ILLINOIS, ACORPORATION OF ILLINOIS.

CHANGE WEB-ROLL MECHANISM FOR PRINTING-PRESSES.

Application filed November 13, 1916.

To all whom it may concern:

Be -it known that I, SAMUEL G. Goss, a citizen of the United States, anda resident of Glencoe, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Change Web-RollMechanisms for Printing-Presses, of which the following is aspecification, reference being had to the accompanying drawings.

This invention relates to change web roll mechanisms for printingpresses and it has for its object the provision of a new and improvedform and arrangement of mechanisms by which the web from a fresh roll inone position upon its framework is spliced to the web being fed to thepress from another roll in another position, this result being effectedpreferably without slowing down the press. It is one of the objects ofmy invention to rovide a stripping mechanism which is effective to stripthe leading end of the web from a fresh roll and to direct such web, incooperation with suitable guiding means, into the bite of two pressingrollers which effect a suitable splicing of the two webs. It is anotherobject of my invention to improve devices of this general type in sundrydetails hereinafter pointed out. The preferred means by which I haveaccomplished my several objects are illustrated in the drawings and arehereinafter specifically described. That, which I believe to be new anddesire to cover by this application is set forth in the claims.

In the drawings Figure 1 is a side view of my improved mechanism,looking toward the ends of the web rolls;

Fig. 2 is a fragmentary view of the lower web roll as seen from theright in Fig. 1;

Fig. 3 is a diagrammatic view of a portion of the mechanism of Fig. 1,showing a changed position of some of the parts;

Fig. 4 is a fragmentary view showing the construction of the means forsupporting and driving the belts by which a fresh roll is set intorotation;

Fig. 5 is a diagrammatic view showing a modified form of construction;

Fig. 6 is a view similar to Fig. 5, but showing a changed position ofthe parts:

Figs. 7 and 8 are views similar to Figs. 5

Specification of Letters Patent.

Patented AprJ22, 1919.

Serial No. 131,160.

and 6, but showing another modified form of construction; and

Figs. 9 and 10 are details, being views of means for driving in eitherdirection the belts that are shown in Figs. 5 to 8, inclusive.

Referring to Figs. 1- to 4 in which corre- '18-19, respectively, mountedin suitable bearings 2021 supported upon the frame 15 substantially atthe inner ends of arms 2223, respectively. The web 24 from the upperroll 16 is shown extending from the roll into the bite of two rollers252-6 mounted in the framework 15 upon transversely-extending shafts27-28, respectively. The rollers 25-26 are to be driven at the samesurface speed as that of the web, but it is not believed to be necessaryto illustrate such driving means.

When the web is being fed to the printing press or other web machinefrom a web roll in either of the two positions occupied by the rolls 1617, a fresh roll is inserted upon a suitable spindle in the otherposition. Before the web is entirely exhausted from the roll inusc. theend portion of the fresh roll is trimmed and secured to the body of theroll by any suitable means adapted to be readily released when a slightforce is applied thereto for that purpose. The end of.

the web is preferably secured in position by means of stickers orpastors 29 which are to be formed of light paper which is adapted to betorn across easily. Paste or gum of any suitable type is applied to theend portion of the web upon its outer face, substantially as shown at'30in Fig. 2, being applied in sections whereby intermediate spaces areleft by reason of which the driving means for the roll and thecontrolling means for the web may contact such parts without coming incontact with the adhesive material. Suitable strippers as hereinafterdescribed are provided adapted to pass between the roll and the end ofthe webas the roll rotates for releasing the end of the web from thebody of the roll. When the web is substantially exhausted from the oldroll,

the new roll is set into rotation at the same surface speed as that ofthe web running from the old roll to the Web machine. Tnasmuch as thestrippers are normally held out of engagement with the fresh rollashereinafter described, the roll may be started into rotation whendesired and maintained in rotation in readiness for splicing the leadingend of the fresh roll to the web from the old roll. The strippers arethen moved at the desired moment toward the fresh roll, serving in duetime to pass between the end of the web and the body of the roll forreleasing the end portion of the web from the roll. When the gummed endof the web of. the fresh roll is thus released, it

shoots outward along the strippers and along suitable guides intocontact with the web from the old roll between the rollers 25-26, beingdrawn with the old web through the press or other web machine.

For stripping the end of a web from a roll and for directing the webfrom the fresh roll into contact with the other web between the rollers2526, T have provided two strippers 3132 swingingly mounted upon theshafts 27-28, respectively, adapted to be swung toward and from aplurality of guiding devices 33 fixed upon a transversely-extending bar34. Each of the strippers 31 32 comprises arms at its ends by which itis swingingl mounted about its shaft 2728. The stripper 31 is connectedb means of a spring 36 with a suitable portion of the framework 15 suchspring tending to raise the strip-per 31 into the position shown inFig. 1. A latch 37 pivotally mounted upon the frame 15 cooperates with anotched collar 38 carried by one of the arms 35 of the stripper 31 forholding the said stripper 31 in its lowermost position against theaction of the spring 36. A latch 39 also mounted upon the frame 15serves in cooperation with a notched collar 40 upon one of the arms 35of the stripper32, to hold the stripper 32 in its raised position asshown in Fig. 1. The latches 37-39 serve to hold the strippers 31-32respectively well out of contact with a fresh roll which may be rotatedby the means hereinafter described without danger of such stripperscoining in contact with the end portion of.

the web. When, however, during the rotation of a fresh roll, it isdesired to have the end of the web of such fresh roll released for theunwinding of the web,-the corresponding latch 37 or 39 may be releasedfrom operative engagement by a pull upon a cord 41 or 42 as the case maybe.

The means for rotating a fresh web roll upon one of the spindles 18-19,when such roll has been prepared after the manner illustrated in Fig. 2,comprises a shaft 43 adapted to be drivencontinuously from the press orother machine with which the Web is being used. The shaft 43 is providedwith a bevel gear L-LL which'meshes with another bevel gear 4C5 fixedlymounted upon a shaft 4:6. The shaft 46 in turn is connected by means ofgears et'P-iB with a shaft 49 revolubly mounted in the framework 15.Revolubly mounted upon the shaft 4C9 are a plurality of sleeves 50depending from which are a plurality of pairs of arms 51 connected bymeans of cross-bars 52. Between the bars 51 of each pair at their lowerends is revolubly mounted a sheave or pulley 53. Between each pair ofarms 51 is fixedlymounted upon the shaft 49 a sheave or pulley 5a, thesheaves 53 and 5% being connected by means of an endless belt 55. One ofthe sleeves 50 is provided witha segmental gear 56 with which-meshes asegmental gear 57 pivotally mounted upon the frame 15. The segmentalgear 57 has fixedly connected to it a lever 58 through the medium ofwhich the gear may be rocked for swinging the arms 51 and the belts. 55into and out of operative contact with a fresh roll upon the spindle 19for rotating such roll. The shaft 43 is to be driven at such a rate asto ive the belts 55 a surface speed equal to, that of the web runningthrough the web machine.

The shaft 4-3 is likewise provided with a bevel gear 59 which mesheswith a bevel gear 60 mounted upon a short shaft 61 which is connected bymeans of gears 6263 with a shaft 64. The shaft 64: is provided withsheaves or pulleys 65 fixedly mounted thereon and adapted to driveendless belts 66, the upper ends of which are supported by sheaves orpulleys 67 revolubly carried between arms 68 swingingly mounted in pairsabout the shaft 64. The arms 68 of each pair are connected by across-bar 69. The arms 68 and the belts 66 are adapted to be swun towardand from a fresh roll upon the spindle 18' by means of a segmental gear70 operatively connected with said arms, said gear meshing with anothersegmental gear 71 which is connected by means of a link 72 with thesegmental gear 57.

When the fresh roll 17 is inserted in the frame and is prepared as shownin Fig. 2, with the stripper 32 held in its uppermost position by thelatch 39, the mechanism is then in readiness for a splicing operation.It will be understood that the gum or other adhesive material will notbe-applied to the end of the web of the fresh roll until shortly beforethe splice is to be made in order to prevent objectionable drying of thegum. When everything is in readiness. the lever 58 is moved to the leftin Fig. 1 carrying the belts 55 into contact with the roll 17 serving togive such roll a rotation in counterclockwise direction in Fig. 1 at thesame surface speed as, that of the running web. At the desired moment,when the web is substantially exhausted from the roll 16, the latch 39is thrown out of operative osition through the medium of the cor 42,permitting the stripper 32 to drop into contact with the roll 17. Whenthe end of the web of the roll 17 reaches its uppermost position in therotation of the roll, a portion of the stripper 32 passes between theend of the web and the body of the roll, serving to tear the pasters 29and to release the end of the web for unwinding. The end of the webimmediately shoots off at a tangent along the stripper 32 into contactwith the web 24 between the rollers 2526 which press the two webstogether so as to cause them to adhere to each other.

The operation of splicing the end of the web of a fresh roll 73 inposition upon the spindle 18 is similar ,to that above described, theend of the web of such fresh roll being directed by the guides 33 intocontact with the running web between 'the rollers 2526.

In Figs. 5 and 6 which show a modified form of construction, the partswhich correspond in general to the parts already described are indicatedby the same reference characters but with the addition of an exponent a.In the construction here shown the spindles 1819 are located fartherapart than in the construction heretofore described, permitting the useof asingle driving means located between such spindles for rotatin afresh roll' upon either of such spindles. his driving means in theconstruction shown comprises sheaves or pulleys 74 fixedly mounted upona shaft 7 5 which is adapted to be driven in either direction as desiredfrom the press or other web machine by the use of any suitable drivingmeans, such, for example, as shown in Figs. 9 and 10 wherein 91indicates a. bevel gear fixed upon one end of the shaft 7 5 and adaptedto mesh with either of two bevel gears 92 and 93 loosely mounted upon avertically-extending shaft 94 driven from any suitable source of ower.A. clutch device 95 of any ordinary construction is slidingly mounted onthe shaft 94; between the said bevel gears 92 and 9.3 for connectingeither gear as desired with the shaft, such clutch device being shiftedby means of an ordinary pivoted hand lever 96. Arms 76 are sw'inginglymounted about the shaft 7 5 carrying at their outer ends sheaves 0rpulleys 77 which are adapted in cooperation with the sheaves or pulleys7 4 to support driving belts 78. Any suitable means is to be em loyedfor swinging the arms 76 and the elts 78 in either direction about theshaft 7 5- for bringin the belts into operative engagement with a, reshroll upon either spindle as desired. The

, strippers 31 32 are mounted upon shafts 7980, respectively, in lieu ofbeing mounted to swing about the shafts 27*28 as in the constructionformerly described. A spring 81 is connected by means of an arm 82 withthe stripper 31 for moving the stripper 31 yieldingly upward upon therelease of the latch 37*. The shaft 79 is provided with an arm 83 whichis connected by means of a link 84 with a lever 85 pivotally mountedupon the framework, the lever 85 being provided at its free end with aroller 86 adapted to engage the periphery of a roll in position upon thespindle 18. The shaft 80 which supports the strippe 32 islikewiseprovided with an arm 87 which is connected by means of a link 88with a lever 89 pivotally mounted up n the framework and carrying at itsfree end a roller 90 adapted to engage the periphery of a roll upon thespindle 17 As will be readily understood, the rollers 86 and 90 serve tocontrol the position of the strippers relative to the rolls and relativeto the web being drawn from one or the other of said rolls, said rollersserving to limit the movement of the strippers toward the rolls so as toprevent the strippers from having objectionable contact with the rolls.

In Figs. 7 and 8, a modified form of construction is shown quite similarto that shown in Figs. 5 and 6, and like reference characters are usedto indicate corresponding parts except for the addition orsubstitu-tio-n of an exponent b. In this construction a modified form ofstripping devices 9192 is shown, adapted to be located within the spacebetween two fresh rolls. In order to meet conditions, the ends of thestrippers are curved slightly so as to permit of the strippers beingmoved out of the way of the web as the size of the roll diminishes.

What I claim as my invention and desire to secure by Letters Patent, is

1. The combination of a framework, means for revolubly supporting twoweb rolls on said framework on fixed axes thereon, a web guide betweensaid rolls in close proximity to a full roll in either position, meansadapted to be moved into and out of contact with either of said rolls atone side thereof for rotating said roll at substantially the samesurface speed as that of the web being drawn from the other roll, andmeans adapted to be moved into operative position relative to a freshroll to release the end of the web from the roll and direct the webalong said guide to the web running from the other roll.

2. A web changing apparatus comprising means for supporting in operativeposition for alternative use a fresh roll and a roll in use, and aplurality of driving devices movable into engagement with the surface ofa fresh roll in either position, respectively, to rotate such fresh rollin the proper direction and at the proper speed to enable it to bespliced to the web in use.

4 nannies 3. The combination of a framework, means for revolublysupporting two web rolls on said framework in close proximity to eachother, two endless belts swingingly mounted adjacent to said rollsrespectively, means for driving said belts substantially at the samesurface speed as that of the Web each of said sheaves, a sheaverevolubly mounted upon each pair of arms, endless belts mounted on sandsheaves, and means for swinging said arms in unison for carry-' ing saidbelts into and out of contact with said roll.

5. The combination of a frame, means for revolubly supporting a web rollon said frame, a shaft journaled on said frame adj acent to said roll,sheaves fixedly mounted on said shaft, a pair of arms swingingly mountedon said shaft on opposite sides of each of said sheaves, a sheaverevolubly mounted upon each pair of arms, endless belts mounted on saidsheaves, means for rotating said shaft for driving said belts, and meansfor swinging said arms in unison for carrying said belts into and out ofcontact with said roll.

6. The combination of a frame, means for revolubly supporting a web rollon said frame, a shaft journaled on said frame adjacent to said roll,sheaves fixedly mounted on said shaft, a pair of arms swingingly mountedon said shaft on opposite sides of each of said sheaves, a sh 'erevolubly mounted upon each pair of arms, endless belts mounted on saidsheaves, means connecting said arms rigidly together, and means forswinging said arms for carrying said belts into and out of contact withsaid roll.

7. The combination of means for revolubly supporting in operativeposition at the same time a fresh roll and a roll in use, means fordriving the fresh roll at a surface speed substantially equal to that ofthe webin use, a pair of coa'cting rollers adjacent to said rolls, meansfor stripping the leading end of the web from the fresh roll, and

means for guiding the leading end from a fresh roll in either positionas it unwinds into the bite of said rollers.

8. The combination of means for revolubly supporting in operativeposition at the same time a fresh roll and a roll in use, means fordriving the fresh roll at a surface speed substantially equal to that ofthe web in use, a pair of coacting rollers adjacent to said rolls, meansfor stripping the leading end of the web from the fresh roll, and a webguide extending from a point between said rollers into close proximityto said rolls for directing the leading end of the Web from a fresh rollin either position as it unwinds into the bite of said rollers.

9. The combination of a frame, means for revolubly supporting a web rollon said frame, means lightly securing the end portion of the web inposition upon said roll, means for rotating said roll, means forstripping the end of said web from said roll, a pair of rollers adjacentto said r0ll,.and a web guide extending into the space between saidrollers adapted in cooperation with said stripping means to direct theweb into the biilze of said rollers as it .unwinds from said r0 l.

10. The combination of a frame, means for revolubly supporting a webroll on said frame, means lightly securing theend portion of the web inposition upon said roll, means for rotating said roll, a pair of rollersadjacent to said roll, a stripper pivotally mounted adjacent to one ofsaid rollers and extending from said roller toward said roll adapted tostrip the end of the web from said roll, and guiding means extendinginto the space between said rollers adapted in cooperation with saidstripper to direct the end of the web into the bite of said rollers.

11. The combination of a frame, means for revolubly supporting a webroll on said frame, means lightly securing the end portion of the web inposition upon said roll, means for rotating said roll, a pair of rollersadjacent to said roll, and a stripper pivotally mounted adjacent to oneof said rollers and extending from said roller toward said roll adaptedto strip the end of the web from said roll and to direct such web intothe bite of said rollers.

12. The combination of a frame, means for revolubly supporting a webroll on said frame, means lightly securing the end portion of the web inposition upon said roll, means for rotating said roll, a pair of rollersadjacent to said roll, a stripper pivotally' mounted upon the axis ofone of said rollers and extending from said roller toward said rolladapted to strip the end of the web from said roll, and guidingmeans-adapted in codperation with said stripper to direct the end of theweb into the bite of said rollers.

13. The combination of a frame, means for revolubly supporting a webroll on said frame, means lightly securing the end portion of the web inposition upon said roll, means for rotating said roll, a pair of rollersadjacent to said roll, and a stripper pivotally mounted upon the axis ofoneof said roll in either position at substantially the same surfacespeed as that of the web runningfrom the other roll, means for strippingthe leading end of the web from the fresh roll, and g iding meansadapted to direct the web from either roll into contact with the webfrom the other roll in the bite of said rollers.

15. The combination of a frame, means for revolubly supporting a webroll on said frame, means lightly securing the end portion of the web inposition upon said roll, means for rotating said roll, a pair of rollersadjacent to said roll, a stripper pivotally mounted adjacent to one ofsaid rollers and extending from said roller toward said roll insubstantially tangential position relative to both adapted to strip theend of the web from said roll, and guiding means for dirooting the endof the web into the bite of said rollers.

16. The combination of a frame, means for revolubly supporting a webroll on said frame, means lightly securing the end portion of the web inposition upon said roll, means for rotating said roll, a pair of rollersadjacent to said roll, and a stripper pivotally mounted on the axis ofone of said rollers and extending from said roller toward said roll insubstantially tangential position relative to both adapted to strip theend of the web. from said roll.

' 17. The combination of a frame, means for revolubly supporting a webroll on said frame, means lightly ecuring the end portion of the web inposition upon said roll, means for rotating said roll, a pair of rollersadjacent to said roll, and a stripper pivotally mounted about the axisof one of said rollers and extending from said roller toward said rollin substantially tangential position relative to both adapted to stripthe end of the web from said rolland to direct it into the bite of saidrollers.

18. The combination of a frame, means for revolubly supporting a webroll on said frame, means lightly securing the end portion of the web inposition upon-said roll, means for rotating said roll, a air of rollersadjacent to said roll, and a strlpper extending transversely of saidframe adjacent to oneof said rollers and having arms revolubly mountedon the shaft of said roller, said stripper being adapted to swing aboutsaid roller in substantially tangential position relative thereto, tostrip the end of the Web from said roll, and to assist in directing suchweb into the bite of said rollers.

19. The combination of a frame, means for revolubly supporting a webroll on said frame, means lightly securing the end portion of the web inposition upon said roll, means for rotating said roll, a pair of rollersadjacent to said roll, a stripper pivotally mounted adjacent to one ofsaid rollers and extending from said roller toward said roll.

in substantially tangentialposition relative to both adapted to stripthe end of the web from said roll, and guiding means in substantiallytangential position relative to said roll but slightly out of contacttherewith adapted in cooperation with said stripper to direct said webinto the bite of said rollers.

20. The combination of a framework, means for revolubly supporting twoweb rolls adjacent to each other on said framework, a pair of co-actingrollers revolubly mounted in close proximity to said rolls adapted toreceive between them the web from either roll, means for rotating afresh roll in either position at substantially the same surface speed asthat of the web running from the other roll, means securing the end ofthe web of the fresh roll lightly in position upon the roll, strippersmovably mounted adjacent to said rolls and movable into close proximityto said rolls respectively into substantially tangential positionrelative thereto, and guiding means in substantially tangential positionrelative to said rolls but slightly out of contact therewith adapted incooperation with said strippers to direct said webs into the bite ofsaid rollers.

21. The combination of, a framework,

means for revolubly supporting two web.

rolls adjacent to each other on said framework, a pair of co-actingrollers revolubly mounted in close proximity to said rolls adapted toreceive between them the web from either roll, means for rotating afresh roll in either position at substantially the same surface speed asthat of the web running from the other roll, means securin the end ofthe web of the fresh roll light y infor alternative use a fresh roll anda roll in use, and a plurality of traveling belts movable intoengagement With the surface of a fresh roll in either position,respectively, to rotate such fresh roll in the proper direction and atthe proper speed to enable it to be spliced to the Web in use.

23. A Web changing apparatus comprising means for supporting inoperative posi- 10 tion for alternative use a fresh roll and a roll inuse, a plurality of driving devices movable into engagement with thesurface of a fresh roll in either position, respectively, to rotate suchfresh roll in the proper direction and at the proper speed to enable itto be spliced to the web-in use, and means connecting said drivingdevices together so that they alternately engage their respective rolls.

SAMUEL G. Goes.

